Check if One String Swap Can Make Strings Equal

class Solution {
public:
    bool areAlmostEqual(string s1, string s2) {
        if (s1 == s2)
            return true;

        for (int i = 0; i < s1.size() - 1; i++) {
            for (int j = i + 1; j < s1.size(); j++) {
                swap(s1[i], s1[j]);

                if (s1 == s2)
                    return true;
                else
                    swap(s1[i], s1[j]);
            }
        }
        return false;
    }
};